Loft Extension Roof Types

Main types of conversions.

Loft extension roof types.

A dormer loft conversion is an extension to the existing roof that projects vertically from a sloping roof creating additional floor space and headroom within the property. Can also be gable fronted or hipped roofed. A dormer loft conversion is an extension that protrudes from the slope of the roof. They are suitable for pretty much any house with a sloping roof.

A mansard loft conversion is similar to a flat roof dormer the main difference being the front slopes at about 70o. Most common type of loft conversion. A flat roof is then built to meet the vertical wall in order to give maximum headroom in the loft extension. These are suitable for most types of home including terraced house loft conversions.

This type of loft conversion involves constructing a vertical wall from the bottom of the sloping roof. There are three basic types of structural alterations. This is a structural extension which projects vertically from the slope of the existing roof creating a box shape. This type is also known as a simple flat roof dormer and is the most popular of the attic conversions.

This type of loft conversion is most popular in traditional semi detached houses although great in any hipped roof enabling the new stairs to go over the existing stairs minimising lost space in original living area. Planning permission often not needed. A dormer is a structural extension which builds vertically from the slope of a roof with a box shape result. Internally a dormer has vertical walls and a horizontal ceiling.